|Item model number||ATMEGA-328P-PU|
|Item Weight||0.3 ounces|
|Package Dimensions||2.5 x 1.5 x 0.5 inches|
ATMEGA328P-PU with Arduino Bootloader - Uno
|Price:||$4.99 & FREE Shipping|
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- The heart and sole of your next robot!
- The perfect chip to revive or upgrade your Arduino (Uno only)
- Can be used as an AVR Microcontroller, or for an Arduino Uno
- 20 MHz 28 Pin Dip with 32KB Flash, and 2KB Random Access Memory
- 6 Analog/Digital Ports, 6 Basic Digital Ports, 6 PWM, and 1 Serial bus (Tx & Rx)
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So if you are looking at this product you probably fried your Arduino Uno. Don't feel bad, it happens to the best of us. We have taken the time to put the Uno bootloader on these bad guys, so if you need to replace or upgrade your chip it will be a snap! Of course don't forget you don't actually need an Arduino to use this chip. This is a standard ATMEGA328 AVR compatible chip.
Top customer reviews
I purchased a couple of these ATMEGA328-PU and I was in the process of building my first Bareduino328 Plus, but the voltage regulators that I had purchased somewhere else were faulty (they overheated when connected to a 9v battery and produced virtually no output, almost zero volts). I sent an email to Virtuabotix to inquire about the best match for the voltage regulator that they used in their demos, and within minutes Joseph Dattilo (CEO of Virtuabotix) replied with a much better answer than I was expecting: he confirmed that the model I indicated should work, but also mentioned that he could make it available on their site just to help me with my project. Within minutes, they had the perfect voltage regulator available, and for an excellent price too.
It is not very common to receive courteous and effective assistance these days, but it is even less common to experience this kind of niceness and competency at once in a single person and company. To me, it is almost more important than the product itself.
BTW: To date, I have purchase the following products from Virtuabotix, and they all receive 5 stars from me. Their products are very cheap, but of excellent quality too!
Virtuabotix Two SG90 9 Gram Micro-servos
Virtuabotix MMA7361 Three Axis Accelerometer Module
Virtuabotix DHT11 Digital Temperature/Humidity Sensor
Fully assembled Arduino Compatible Prototyping Shield
ATMEGA328P-PU with Arduino Bootloader - Uno
Order three, received three, but none of them seem to work.
The Arduino Uno is recognized in the device manager, but the IDE cannot communicate with the board with these chips installed. The RX light flashes twice when attempting to burn a sketch, and then it does nothing. The reset button does not work, or produce any noticeable effect, either.
The chip is installed the correct direction, the board mode is set to Uno, and the serial port is correct. Everything works if I remove the new chip and plug the original chip back in. They are the same part number, ATMega328P-PU, so there shouldn't be any problem, assuming the bootloader on these chips is working correctly.
After a bit of troubleshooting, I suspect the bootloader is either non-functional or nonexistent on these chips. I'll give burning a bootloader a try before I pronounce the chips DOA, of course, but having to burn a bootloader kind of defeats the whole purpose of buying them with a bootloader "installed."
Other recent reviewers seem to have the same problem. If you are thinking of buying these, I would recommend against it.
I was able to successfully bootload these and got them working, confirming that they did not come boot loaded. I followed the following tutorial:
I did have to use the oscillator which I believe means someone attempted to bootload them before.
ABLE, if you plan to sell a product of this nature, you should test every one by loading the blink code onto it. When I purchased my board from ARDUINO, it came with this code loaded to show the bootloader worked. I am a Electronic Quality Engineer and the company I work for would never be allowed to ship without a form of testing. Your customer would feel better if it came with code on it to at least verify that it will function as advertised.
Most recent customer reviews
Just please be careful when inserting the chip into a Styrofoam block, as one of the pins was bent 90 degrees.Read more